tube-crossdrill-jig: move mainframe holes to middle of slots

[reprap-play.git] / tube-crossdrill-jig.scad

diff --git a/tube-crossdrill-jig.scad b/tube-crossdrill-jig.scad
index 0b18eccd9269bb45729ce65a9c827dcbfce83b7b..72da7c0c80a5ab46a217b7b617303eaef9e39c53 100644 (file)
--- a/tube-crossdrill-jig.scad
+++ b/tube-crossdrill-jig.scad
@@ -41,22 +41,21 @@ keepslotclear = 10;
 
 // computed values
 
-mainframeholex = backslotedgespace/2 + slotwidth/sqrt(2) +
-  backslotmid2screwhole / sqrt(2);
-
-mainframeholey = -backslotmid2screwhole / sqrt(2);
-
-mainframemaxx = mainframeholex + mainframeextraside;
-mainframeminy = mainframeholey - mainframeextrafront;
-mainframemaxz = keepslotstartz + keepslotlen;
-
 slotslopediag = sqrt(1 + slotslope*slotslope);
 slotwidthx = slotwidth * slotslopediag;
 
 slotxperlen = slotslope / slotslopediag;
 slotyperlen =         1 / slotslopediag;
 
-echo(slotslope, slotslopediag, slotwidthx);
+mainframeholex = backslotedgespace/2 + slotpluglongerlen * slotxperlen
+  + 0.5 * slotwidth * slotyperlen;
+
+mainframeholey = -slotpluglongerlen * slotyperlen
+  + 0.5 * slotwidth * slotxperlen;
+
+mainframemaxx = mainframeholex + mainframeextraside;
+mainframeminy = mainframeholey - mainframeextrafront;
+mainframemaxz = keepslotstartz + keepslotlen;
 
 module MainFrame(){
   for (m=[0,1]) {